Bigelow, J. (1990). Science and necessity. Univ. Pr.
Chicago-čujuhus (17. p.)Bigelow, John. Science and Necessity. Cambridge: Univ. Pr, 1990.
MLA-čujuhus (9. p.)Bigelow, John. Science and Necessity. Univ. Pr, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.